IVGCVSW-2398 Add no-op factory implementations for all backends for the
Equal operation

 * Add QueueDescriptor in WorkloadData.hpp
 * Add CreateEqual function in WorkloadFactory.hpp
 * Added stub implementation of the CreateEqual function in RefWorkloadFactory,
   NeonWorkloadFactory and ClWorkloadFactory

Change-Id: Iec6dc2f989c67fa6f0c32cfb93508995c8580783
diff --git a/Android.mk b/Android.mk
index e4033d5..ad8026a 100644
--- a/Android.mk
+++ b/Android.mk
@@ -93,6 +93,7 @@
         src/armnn/layers/DebugLayer.cpp \
         src/armnn/layers/DepthwiseConvolution2dLayer.cpp \
         src/armnn/layers/ElementwiseBaseLayer.cpp \
+        src/armnn/layers/EqualLayer.cpp \
         src/armnn/layers/FakeQuantizationLayer.cpp \
         src/armnn/layers/FloorLayer.cpp \
         src/armnn/layers/FullyConnectedLayer.cpp \